I. Introduction
Mushroom has a friend who always deals with a variety of photos every day, locks the first scene through photos, determines the actual situation through photos, and then determines the completion effect through photos, and finally archives photos.
At first, it was fine that there were not too many photos, and later more and more photos directly filled all his storage space. Three mobile phones, laptops, and several portable hard drives, all occupied. Full is good to say, and then buy a new storage device is OK, but when needed to find, move photos between multiple platforms is very troublesome, especially between mobile phones and mobile hard disks, no computer can not view, send photos, so friends want to buy a mobile solid-state drive, convenient to transfer photos between mobile phones and computers, in various situations.
Before mushrooms also helped him get a mobile solid-state drive, using the system disk dismantled from his own notebook, only 128G, it did not take two days to be full, this time I want to get a larger space.
Since the photo file is quite large, I want to buy a fast one. But the price of the finished mobile SSD is too high, so I wanted to help save one.
That pair of slow speed requirements are relatively high, low price, slow external performance is excellent, basically only the armored man RC20 is optional. The price is still cheap, and the hard disk enclosure can be used before him.
Second, small, portable, cost-effective, spend the right money to create a large-capacity mobile SSD out of the box
▼ The packaging of the SSD is very simple, it is a small carton.
▼ The carton design of the SSD is very simple, black and yellow color, the middle is the color printing of the SSD, and the bottom is the model and capacity.
▼ Open the paper tray and place the SSD in a plastic case, next to the instruction manual and installation diagram.
Third, small, portable, cost-effective, spend the right money to create a large-capacity mobile SSD appearance
▼ The appearance of the SSD is also very beautiful, single-sided grain design.
▼ And this solid state workmanship is good, the main control, cache, particles have dispensing treatment, the effect of resistance to vibration is good, suitable for use in the mobile hard disk.
Fourth, small, portable, cost-effective, spend the right money to create a large-capacity mobile solid-state drive assembly
▼ Here the mobile SSD and the hard disk box together, for this small volume of the mobile hard disk box, it is important to do a good job of heat dissipation.
▼ In the case of normal installation of solid state, there is still space between the solid state and the PCB, and the thermal conductivity is low.
▼ Mushroom found a blue thermal pad of the right thickness and attached it to the mobile solid PCB.
▼ In this way, the solid-state PCB can basically contact the PCB of the hard disk box, and the thermal conductivity will be improved a lot.
▼Then paste the back of the PCB of the hard disk box with a thermal pad to make contact with the metal shell of the hard disk box to quickly dissipate the heat.
▼ In addition, mushrooms before helping friends install computers, used Weigang's 840 solid state, leaving an original metal heat sink, which is directly attached to the front of the solid state drive, playing a role of a thermal pad and a heat transfer pad.
▼ But there is still a gap between this metal heatsink and the hard disk metal shell, mushrooms here directly choose to fill with silicone grease, before buying CPU loose pieces to send a lot of cheap silicone grease, here directly coated, certainly than the effect of not coating a lot stronger.
▼Apply a layer evenly, then slowly push it out, the excess silicone grease will be squeezed out, and then wipe off with toilet paper, OK.
▼Finally, screw on the fixed stops and screws at both ends of the hard disk box and install it!
Fifth, small, portable, cost-effective, spend the right money to create a large-capacity mobile SSD test
▼ The original hard disk box sent two wires, a CC cable, a CA cable, according to different interfaces, choose to use different cables.
▼ When the hard disk enclosure works, there is a blue indicator light on the bottom.
1. Speed test
▼ Normal work when the standby 34 ° C, the temperature performance is good, the interface shows UASP, should be NVMe to USB.
▼ Simple run a read and write test, using CC line, interface select 20Gbps Type-C interface, read 915MB/s, write 827MB/s, the speed is not bad.
▼ Run a complete test, the overall score of 888 points, of which 4K read 36MB/s, write 60MB/s, this score is good, you can run software on the mobile solid-state drive, this 4K performance is no problem.
▼ Change the DiskMark test, sequential read 1048MB/s, write 990MB/s, the speed performance is also quite good, slightly higher than the AS SSD test.
▼ Run a complete test, the overall performance is not bad, and can break the wrist with some SATA solids.
▼ Continuously write and read 200GB files, with an average reading of 844MB/s and writing 767MB/s, which is not bad. However, in this working situation, this piece of armored man's RC20 also has an SLC Cache, with a capacity of about 23GB, which can basically run 950MB/s in the slow, and basically 750MB/s outside the slow, the former is the interface upper limit limit, and the latter is its own hardware parameter limitation. The curve of the write speed outside the slow is very stable, almost a straight line, the read speed outside the slow is more struggling, in 800 ~ 850MB / s fluctuations, should be limited by the main control problem of the hard disk box, the probability is not a heat dissipation problem, if it is a heat dissipation problem, the fluctuation will not be so small, after all, the temperature will not drop so fast.
▼ Change interface, USB Type-A 10Gbps, simple run a read and write test, sequential read 921MB/s, write 804MB/s, also OK.
▼ Another interface, USB Type-A 5Gbps, simply run a read and write test, read 431MB/s, write 435MB/s, and the normal SATA SSD speed is almost the same.
2. Temperature test
▼The room temperature is about 26 °C, and the air conditioner is not turned on.
▼ When the 200G file is written continuously, the temperature of the SSD is only 51 ° C, which is very low, indicating that the mushroom heat dissipation is very good, and the motherboard with the heatsink of the M2 interface is also about this temperature.
▼ When you continue to run 200G file reading, the temperature of the SSD is slightly higher, and it goes to 59 ° C, which is also OK.
▼ Running 200G files continue to write the case, the overall feel of the hard disk box is slightly hot, and it can be held. The temperature at the bottom of the test enclosure fluctuates around 31~33°C, which is not bad.
▼ The upper part of the hard disk box temperature is higher, fluctuating around 33 ° C ~ 37 ° C, when taking pictures, the hand will be loose, the contact is not tight, and the temperature of this contact temperature sensor will naturally drop. However, in the long-term non-stop, non-stop reading and writing, the temperature of the hard disk box will also go up, to about 45 ° C, slightly hot, can be held. In addition, the mushroom found a very artifact thing, that is, holding can be effective auxiliary hard disk box heat dissipation, just ran the test, solid state temperature 59, 60 ° C, the natural cooling speed is relatively slow, have to wait a few minutes, but in the hand to hold up, less than half a minute, the solid state temperature dropped to about 50 ° C, very fast. If you want to keep the SSD running stably, hold it in your hand and provide passive heat dissipation.
6. Summary
This mobile solid-state drive as a whole is still very good, the hard disk box is before, only spent a solid-state money, it is more than 5 points, but it has about 900MB /s read, write performance, and those finished mobile solid-state drives compared to the cost-effective.
In addition, 4K performance is not bad, if it is not used for simple storage, but to run some software and the like is no problem.
Oh, heat dissipation must be done well, not on the thermal pad with silicone grease, otherwise it will be easier to overheat, and then affect the performance.
Thank you!
The End